Tue 05 May 2004NI vehicle test staff go on strikeStaff at vehicle test centres across Northern Ireland have gone on strike for more pay. The open-ended industrial action means that up 5,000 vehicle tests and 500 driving tests may be cancelled.The refusal by staff to process certificates for the vehicle test, known as the MoT, means that officially drivers are using their vehicles illegally and there could be knock-on effects for insurance cover.